The nearest OpenGL equivalents would be glCopyPixels, glReadPixels and glDrawPixels, but there are a lot of differences to the above.

bubbaJr

02-16-2005, 08:04 AM

In the past, I've tried using glCopyPixels, glReadPixels, glDrawPixels in attempts to rapidly move a 640 x 480 region of pixels to a memory buffer, then back again. Hopefully BitBlt would do this better than I could make glCopy/Read/DrawPixels do it.